What is the dreadful oracle that was delivered to king acrisius?

The dreadful oracle delivered to King Acrisius foretold that he would be killed by his own grandson. To prevent this prophecy from coming true, Acrisius imprisoned his daughter, Danaë, in a bronze chamber. However, Zeus visited her in the form of golden rain, and she gave birth to Perseus, ultimately leading to the fulfillment of the oracle when Perseus accidentally killed Acrisius later in life.